US20160316850A1 - Slipper or sandal capable of being worn bi-directionally - Google Patents
Slipper or sandal capable of being worn bi-directionally Download PDFInfo
- Publication number
- US20160316850A1 US20160316850A1 US15/099,728 US201615099728A US2016316850A1 US 20160316850 A1 US20160316850 A1 US 20160316850A1 US 201615099728 A US201615099728 A US 201615099728A US 2016316850 A1 US2016316850 A1 US 2016316850A1
- Authority
- US
- United States
- Prior art keywords
- fluid
- rotating shaft
- check ball
- slipper
- fluid storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
- A43B13/203—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with a pump or valve
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/24—Collapsible or convertible
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/10—Low shoes, e.g. comprising only a front strap; Slippers
- A43B3/101—Slippers, e.g. flip-flops or thong sandals
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/189—Resilient soles filled with a non-compressible fluid, e.g. gel, water
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/10—Low shoes, e.g. comprising only a front strap; Slippers
- A43B3/101—Slippers, e.g. flip-flops or thong sandals
- A43B3/102—Slippers, e.g. flip-flops or thong sandals leaving the heel of the foot bare
- A43B3/103—Slippers, e.g. flip-flops or thong sandals leaving the heel of the foot bare characterised by the attachment of the toestrap
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/10—Low shoes, e.g. comprising only a front strap; Slippers
- A43B3/108—Low shoes, e.g. comprising only a front strap; Slippers characterised by the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/12—Sandals; Strap guides thereon
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/12—Sandals; Strap guides thereon
- A43B3/128—Sandals; Strap guides thereon characterised by the sole
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1823—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for ball check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
Abstract
A shoe in form of a slipper or sandal, includes a body 100 adapted to have a first fluid casing 12 and a second fluid casing 14, each having an elastic property, embedded in the front and rear portions of the body, respectively, and an instep strap 120 supported to the body in such a way as to be rotated in a specific section. A rotating shaft 16 is rotated in conjunction with the instep strap, and it includes a first connecting portion connected to the first fluid casing and a second connecting portion connected to the second fluid casing and an internal passage having respective check ball seating portions formed on the inside of the first and the second connecting portions, and with check ball received in the internal passage. When the rotating shaft is inclined by rotation of the rotating shaft, the check ball closely adheres to any one of the check ball seating portions by gravity or buoyancy and regulates a fluid flow to any one of the first and the second connecting portions.
Description
- This application claims the priority benefit of Korean Patent Application No. 10-2015-0060582 filed on Apr. 29, 2015, the entire contents of which are incorporated herein by reference.
- The present invention relates to a slipper (or sandal) capable of being worn bi-directionally, and more particularly to a slipper capable of being worn in both directions because the height of the front and rear of the slipper can be adjusted using a valve assembly capable of controlling the flow direction of a fluid.
- In general, a slipper or sandal has a simple structure, but has its front and rear directions determined. Accordingly, for example, in order to wear a slipper in the state in which a user has taken off the slipper when entering a home, the direction of the shipper must be changed. The slipper is chiefly used indoors. For example, if the slipper is used in an indoor bathroom, it is very inconvenient for a user to wear the slipper, taken off while exiting from the bathroom, when entering the bathroom again because the direction of the sipper must be changed.
- In order to solve such inconvenience in use, there have been proposed various types of slippers capable of being used bidirectionally. Such proposals are merely a change of the direction of the instep strap of the slipper. The height of the bottom surface of the slipper has been determined depending on the front and rear directions of the slipper. In general, the height of the front has been designed to be low, whereas the height of the front has been designed to be high.
- And in order to change the front and rear directions of the slipper and wear the slipper, the biggest problem is the height of the front and rear portions of the slipper. Although the direction of the instep strap of the slipper may be changed in various forms, a change in the height of the front and rear directions of the slipper itself is not so easy, and a detailed and realistic proposal therefor has not be found.
- In order to change the direction of a slipper and wear the slipper as described above, the direction of the instep strap of the slipper must be changed and the height of the front and rear directions of the slipper must also be adjusted.
- The present invention provides a slipper capable of being worn in both direction because the front and rear directions of the slipper can be changed by adjusting the height of the front and rear directions. According to the one aspect of the invention, a slipper includes, a body of the slipper having a first fluid storage casing and a second fluid storage casing embedded in a front portion and rear portion of the body respectively, each of the first fluid storage casing and second fluid storage casing having an elastic force; an instep strap of the slipper supported to the body being rotatable; a rotating shaft mounted in the body transversely, supported being rotatable in conjunction with the instep strap, and having an internal passage having a first and second check ball seating portions formed at both inner ends of a front and rear respectively; a first connecting portion and a second connecting portion for connecting the check ball seating portions to the first fluid storage casing and the second fluid storage casing, respectively; and a check ball embedded in the internal passage, having close contact to the check ball seating portion at a low position by a setting force when the internal passage is inclined by the rotation of the rotating shaft, and permitting a flow of a fluid in only one direction from the internal passage to the first connecting portion or the second connecting portion which is at high position. When the rotating shaft is inclined depending on a rotation angle of the instep strap, one of the fluid storage casing is expanded and the other fluid storage casing is contracted by the pressure applied on the both fluid storage casings and the one direction fluid flow, thereby adjusting a height of the front and rear of the slipper. According the another aspect, a slipper includes, a body of the slipper having a first fluid storage casing and a second fluid storage casing embedded in a front portion and rear portion of the body respectively, each of the first fluid storage casing and second fluid storage casing having an elastic force; a instep strap of the slipper supported to the body being rotatable; a rotating shaft mounted in the body transversely, supported being rotatable in conjunction with the instep strap, and having an internal passage having a first and second check ball seating portions formed at both inner ends of a front and rear respectively; a first connecting portion and a second connecting portion for connecting the check ball seating portions to the first fluid storage casing and the second fluid storage casing, respectively; and a check ball embedded in the internal passage, having close contact to the check ball seating portion at a high position by a buoyancy force when the internal passage is inclined by the rotation of the rotating shaft, and permitting a flow of a fluid in only one direction from the internal passage to the first connecting portion or the second connecting portion which is at a low position. When the rotating shaft is inclined depending on a rotation angle of the instep strap, one of the fluid storage casing is expanded and the other fluid storage casing is contracted by the pressure applied on the both fluid storage casings and the one direction fluid flow, thereby adjusting a height of the front and rear of the slipper.
- In the slipper according to an embodiment of the present invention, the center rotating shaft is rotated and inclined by a movement of the instep strap, and thus the fluid within the body can be moved only in one direction. Accordingly, the direction of the slipper can be changed because the angle of the instep strap can be adjusted and thus the height of the front or rear of the body can be adjusted. For example, when a user wears the slipper indoors, the user can wear the slipper in the state of taken off in an opposite direction. Accordingly, there is an advantage in that the slipper can be worn in both directions.
-
FIG. 1 is an exemplary sectional view showing an example of a slipper of the present invention. -
FIGS. 2A and 2B are exemplary sectional views showing the flow direction of a fluid based on a rotation angle within the valve assembly. -
FIG. 3 is an exemplary plan view of the valve assembly of the invention. -
FIG. 4 is an exemplary sectional view showing another example of slipper of the present invention. - Embodiments of the present invention are described in detail below with reference to the accompanying drawings. As shown in
FIG. 1 , aslipper 100 according to an embodiment of the present invention includes avalve assembly 10 capable of controlling the flow direction of a fluid. Thevalve assembly 10 has been designed so that the direction of the fluid within aninternal passage 20 formed within a rotatingshaft 16 is determined depending on the rotation angle of the rotatingshaft 16. - The rotating
shaft 16 which is mounted in abody 110 transversely has theinternal passage 20 therein. Theinternal passage 20 may be inclined forward or backward by the rotation of the rotatingshaft 16. Acheck ball 18 is included in theinternal passage 20 of the rotatingshaft 16. Thecheck ball 18 determines the flow direction of the fluid within theinternal passage 20 by a setting force or buoyancy. In this case, the rotatingshaft 16 has been installed in left and right directions within thebody 110, and the rotatingshaft 16 is inclined in front and rear directions. - And the
internal passage 20 is connected to afirst fluid casing 12 and asecond fluid casing 14 on the outside of the rotatingshaft 16. Accordingly, thefirst fluid casing 12 and thesecond fluid casing 14 can supply the fluid or can be supplied with the fluid through theinternal passage 20 with each other. More specifically, thefirst fluid casing 12 is connected to theinternal passage 20 through a first connectingportion 26, and thesecond fluid casing 14 is connected to theinternal passage 20 through a second connectingportion 28. - The
fluid casings portions fluid casings portions portions portions shaft 16 which is rotatable. - The fluid can flow between the
internal passage 20 and thefluid casings portion 26 and the second connectingportion 28 formed on both ends of theinternal passage 20. The checkball seating portions internal passage 20 joining the respective connectingportions ball seating portions 24 are formed to have a corresponding shape toball 18. That is to say thecheck ball 18 can closely adhere to theball seating portions 24 or thecheck ball 18 can have a close contact to any one ofball seating portions 24. For example, the checkball seating portion 24 may be formed to have a hemispherical concave portion or a partial concave and globular shape. The checkball seating portion 24 includes the first or front checkball seating portion 24 a formed in the front F and the second or rear checkball seating portion 24 b formed in the rear R, as shown inFIG. 1 . - The
check ball 18 may regulate a flow of the fluid in one direction only when it is seated in any one of theseating portions 24. And thecheck ball 18 is unable to regulate a flow of the fluid in themiddle portion 22 of theinternal passage 20. That is, as may be seen fromFIGS. 2A and 3 , thecheck ball 18 cannot regulate a flow of the fluid in themiddle portion 22 of theinternal passage 20 because themiddle portion 22 has a diameter or cross section greater than that of thecheck ball 18.FIG. 3 shows the state in which thecheck ball 18 has been placed in themiddle portion 22 of theinternal passage 20 in a plan view. As may be seen fromFIGS. 2 and 3 , thecheck ball 18 cannot block a flow of the fluid because themiddle portion 22 of theinternal passage 20 has a greater width and height. - The height of the front and rear of the slipper can be adjusted because the
valve assembly 10 configured as described above is applied to theslipper 100. As shown inFIG. 1 , theslipper 100 includes thebody 110 on which a foot of a user is placed and aninstep strap 120 whose both ends are supported in the middle portion of thebody 110 and which can be rotatable in clockwise or counterclockwise. Furthermore, the both ends of theinstep strap 120 is connected to the both ends of rotatingshaft 16. Thefirst fluid casing 12 is installed in a portion of thebody 110 corresponding to the front F of the slipper, and thesecond fluid casing 14 is installed within a portion of thebody 110 corresponding to the rear R of the slipper. - And the rotating
shaft 16 is installed in thebody 110 between the firstfluid casing 12 and thesecond fluid casing 14. The rotatingshaft 16 may be installed to operate in conjunction with theinstep strap 120 of theslipper 100, for example, to operate in conjunction with thesupport shaft 112 of theinstep strap 120. Furthermore, as shown by a solid short line inFIG. 1 , when theinstep strap 120 is forward rotated at an angle, thevalve assembly 10 becomes the state shown inFIG. 1 . At this time, the rotatingshaft 16 has been rotated at the same angle in a counterclockwise direction that is the same direction as theinstep strap 120. - The front portion of the
internal passage 20 becomes low in the state in which therotating shaft 16 has been rotated counterclockwise and inclined at an angle as shown inFIG. 1 . Accordingly, thecheck ball 18 is seated in the first checkball seating portion 24 a in front of the first connectingportion 26 because it sinks down by a setting force. In the stated shown inFIG. 1 , thecheck ball 18 has a close contact to the first checkball seating portion 24 a, to the extent that the fluid cannot flow from theinternal passage 20 to the first connectingportion 26. Also in this state, since thecheck ball 18 blocks the passage to the first connectingportion 26, a flow of the fluid from theinternal passage 20 to the first connectingportion 26 is prevented. That is, in this state, a flow of the fluid from thesecond fluid casing 14 to the firstfluid casing 12 cannot be allowed. - However, when the fluid flows from the first
fluid casing 12 to theinternal passage 20 through the first connectingportion 26, thecheck ball 18 cannot prevent the flow of the fluid. Accordingly, the fluid in the firstfluid casing 12 becomes the state in which the fluid can enter thesecond fluid casing 14 through theinternal passage 20. That is, the fluid can move from the firstfluid casing 12 in front of thebody 110 of theslipper 100 to thesecond fluid casing 14 in the rear of thebody 110 in the state in which theinstep strap 120 of theslipper 100 has been rotated at an angle to the front direction as indicated by the solid line inFIG. 1 . - That is, when a user wears the
slipper 100 in the state in which the front of theslipper 100 is forward inFIG. 1 , theinstep strap 120 is inclined to the left at a specific angle as indicated by the solid line inFIG. 1 . Furthermore, in this state, since thecheck ball 18 has a close contact to the first checkball seating portion 24 a in the front F, flow of the fluid from the firstfluid casing 12 to thesecond fluid casing 14 can be formed, but flow of the fluid from thesecond fluid casing 14 to the firstfluid casing 12 is not allowed. - The top side of foot inclines high rearward, generally. Thus when a user wears the slipper, the
instep strap 120 is directed toward, that is to say theinstep strap 120 rotates counterclockwise as shown inFIG. 1 with solid line. As a result, the fluid can move from the firstfluid casing 12 to thesecond fluid casing 14, by the pressure applied to the firstfluid casing 12. That is to say, when the user presses the front portion of thebody 110 of theslipper 100 with his or her sole, the fluid can move from the firstfluid casing 12 to thesecond fluid casing 14. Accordingly, the height of thesecond fluid casing 14 in the rear is increased by the fluid moved from the firstfluid casing 12 to thesecond fluid casing 14 as described above. As a result, the height of the rear portion of thebody 110 of theslipper 100 will be increased, and the height of the front portion of thebody 110 of theslipper 100 will be decreased. - In this case, an operation of pressing, by the foot of the user, the front portion of the
body 110 of theslipper 100 may be the same as an operation of pressing, by the foot the firstfluid casing 12. Such an operation can be sufficiently performed in a process of wearing the slipper in addition to when the user is walking. When any one of the firstfluid casing 12 and thesecond fluid casing 14 is pressurized by such an operation of the user, one of the first fluid casing and the second fluid casing can be expanded and the other of the first fluid casing and the second fluid casing can be contracted by a movement of the fluid through theinternal passage 20, thereby being capable of adjusting the height of the front and rear of the slipper. - Furthermore, in the state in which the
instep strap 120 stands upright as indicated by B inFIG. 1 , thevalve assembly 10 becomes the state shown inFIG. 2A . This may be said to be a neutral state that is not the state in which the user has not worn the slipper. The state shown inFIG. 2B is opposite the state shown inFIG. 1 . This may be said to be the state in which theinstep strap 120 of theslipper 100 becomes the state indicated by C inFIG. 1 . In this state, the user has worn the slipper in an opposite direction, that is, the user has worn the rear R of theslipper 100 forward. - In this state, when the
instep strap 120 becomes the state indicated by C inFIG. 1 , the rotatingshaft 16 is clockwise rotated in a specific section, thus becoming the state shown inFIG. 2B . In this state, thecheck ball 18 sinks down and closely adheres or contacts to the second checkball seating portion 24 b in the rear, which neighbors the second connectingportion 28. Accordingly, in this state, the fluid can move from thesecond fluid casing 14 to the firstfluid casing 12, but a flow of the fluid in an opposite direction is not permitted. - And in this state, the user has worn the
slipper 100 in a reverse direction, and thus theinstep strap 120 has been inclined toward the rear R. In this state, the fluid can move from thesecond fluid casing 14 to the firstfluid casing 12 within thebody 110 of theslipper 100 as described above. Accordingly, the fluid can flow from thesecond fluid casing 14 to the firstfluid casing 12 in the front F by a force generated by the sole of the user pressing thesecond fluid casing 14, thereby raising the body of the front portion up. - In accordance with the first embodiment described above, an example in which the
check ball 18 of thevalve assembly 10 has a setting force has been described. That is to say, the check ball 19 sinks in the fluid, since thecheck ball 18 may be made of metal having greater specific gravity than the fluid. In a second embodiment of the present invention to be described below, it is assume that thecheck ball 18 is made of a material having buoyancy, that is, a material having smaller specific gravity than a fluid. - In a description of the second embodiment, the same elements as those of the first embodiment are assigned the same reference numerals as those of the first embodiment.
FIG. 4 shows the state in which a user has worn theslipper 100 using the front F as a forward direction in the same state as the state of theslipper 100 shown inFIG. 1 . In this state, since thecheck ball 18 has buoyancy and float in the fluid, it blocks the second checkball seating portion 24 b connected to the second connectingportion 28. - Accordingly, in this state, the fluid cannot exit from the
internal passage 20 through the second connectingportion 28. On the contrary to this, the fluid can enter into theinternal passage 20 through the second connectingportion 28. The embodiment is different from the first embodiment in that the second connectingportion 28 is connected to the firstfluid casing 12 and the firstfluid connecting portion 26 is connected to thesecond fluid casing 14. That is, the present embodiment is different from the first embodiment in that thecheck ball 18 is made of a material having buoyancy with respect to a fluid and the first connectingportion 26 and the second connectingportion 28 are connected to different fluid casings. Furthermore, a substantial operation is the same as that of the first embodiment. - As described above, in accordance with the present invention, when the
valve assembly 10 is applied to theslipper 100, the flow direction of a fluid can be controlled depending on the rotating direction of the instep strap of theslipper 100. If thevalve assembly 10 according an embodiment of the present invention is applied to the slipper, the height of the front or rear of thebody 110 can be adjusted so that a user can wear the slipper in both directions. - As described above, it is evident that those skilled in the art may change and modify the present invention in various ways without departing from the technical spirit of the present invention and the scope of the present invention should be interpreted based on the appended claims and their equivalents.
Claims (2)
1. A shoe in form of a slipper or a sandal, the shoe comprising:
a body having a first fluid storage casing and a second fluid storage casing enclosed in a front portion and a rear portion of the body, respectively, each of the first fluid storage casing and second fluid storage casing having an elastic property;
an instep strap rotatably supported onto the body;
a rotating shaft mounted to the body in a manner being rotatable in conjunction with the instep strap, and having an internal passage with first and second check ball seating surfaces formed at two opposite inner ends of the internal passage;
the rotating shaft having a first connecting portion and a second connecting portion for connecting the first and second check ball seating surfaces to the first and second fluid storage casings, respectively; and
a check ball enclosed in the internal passage of the rotating shaft, the check ball being moveable to contact closely to a lower positioned one of the check ball seating surfaces by gravitational force when the internal passage is inclined by rotation of the rotating shaft, and permitting a fluid flow in only one direction from the internal passage to one of the first and second connecting portions of the rotating shaft which is at a higher position;
wherein when the rotating shaft is inclined in accordance with a rotation angle of the instep strap, one of the fluid storage casing is expanded and the other fluid storage casing is contracted by pressure applied on the fluid storage casings due to the one direction fluid flow, thereby capable of adjusting a height of the front and rear portions of the body.
2. A shoe in form of a slipper or a sandal, the shoe comprising:
a body having a first fluid storage casing and a second fluid storage casing enclosed in a front portion and a rear portion of the body, respectively, each of the first fluid storage casing and second fluid storage casing having an elastic property;
an instep strap rotatably supported onto the body;
a rotating shaft mounted to the body in a manner being rotatable in conjunction with the instep strap, and having an internal passage with a first and second check ball seating surfaces formed at two opposite inner ends of the internal passage;
the rotating shaft having a first connecting portion and a second connecting portion for connecting the first and second check ball seating surfaces to the first and second fluid storage casings, respectively; and
a check ball enclosed in the internal passage of the rotating shaft, the check ball being moveable to close contact to a higher positioned one of the check ball seating surfaces by a buoyancy force when the internal passage is inclined by rotation of the rotating shaft, and permitting a fluid flow in only one direction from the internal passage to one of the first and second connecting portions of the rotating shaft which is at a lower position;
wherein when the rotating shaft is inclined in accordance with a rotation angle of the instep strap, one of the fluid storage casing is expanded and the other fluid storage casing is contracted by pressure applied on the fluid storage casings due to the one direction fluid flow, thereby capable of adjusting a height of the front and rear portions of the body.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2015-0060582 | 2015-04-29 | ||
KR1020150060582A KR101586788B1 (en) | 2015-04-29 | 2015-04-29 | Slipper having valve assembly controlling fluid flow derection based on rotation angle |
Publications (2)
Publication Number | Publication Date |
---|---|
US20160316850A1 true US20160316850A1 (en) | 2016-11-03 |
US9795183B2 US9795183B2 (en) | 2017-10-24 |
Family
ID=55306321
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/099,728 Expired - Fee Related US9795183B2 (en) | 2015-04-29 | 2016-04-15 | Slipper or sandal capable of being worn bi-directionally |
US15/099,792 Expired - Fee Related US10165820B2 (en) | 2015-04-29 | 2016-04-15 | Valve assembly for controlling flow direction of fluid based on rotation angle |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/099,792 Expired - Fee Related US10165820B2 (en) | 2015-04-29 | 2016-04-15 | Valve assembly for controlling flow direction of fluid based on rotation angle |
Country Status (5)
Country | Link |
---|---|
US (2) | US9795183B2 (en) |
EP (2) | EP3088777A1 (en) |
JP (2) | JP6364041B2 (en) |
KR (1) | KR101586788B1 (en) |
CN (2) | CN106090348A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020500656A (en) * | 2016-12-07 | 2020-01-16 | キム, ヨン−ソKIM, Yong−Soo | Valve assembly that can control the flow direction of fluid according to the inclination direction |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101586788B1 (en) * | 2015-04-29 | 2016-01-19 | 김용수 | Slipper having valve assembly controlling fluid flow derection based on rotation angle |
KR101920030B1 (en) * | 2016-12-07 | 2018-11-19 | 김용수 | Valve assembly |
KR101920031B1 (en) * | 2016-12-07 | 2018-11-19 | 김용수 | Valve assembly |
KR101920032B1 (en) | 2016-12-07 | 2019-02-08 | 김용수 | Valve assembly |
US11206896B2 (en) * | 2017-02-27 | 2021-12-28 | Nike, Inc. | Adjustable foot support systems including fluid-filled bladder chambers |
US10295072B2 (en) | 2017-09-13 | 2019-05-21 | Hyundaekangjeon Co., Ltd. | Valve assembly for controlling direction of fluid flow according to direction of inclination |
KR101865096B1 (en) * | 2017-09-13 | 2018-06-07 | 현대강전(주) | Valve assembly for controlling direction of fluid flow according to direction of inclination |
KR101994923B1 (en) * | 2018-03-27 | 2019-07-03 | 현대강전(주) | Valve assembly having a plurality of inlet and outlet ports |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106222A (en) * | 1977-08-01 | 1978-08-15 | Houck Randall G | Inflatable podiatric device |
US4446634A (en) * | 1982-09-28 | 1984-05-08 | Johnson Paul H | Footwear having improved shock absorption |
US4753022A (en) * | 1987-04-27 | 1988-06-28 | Gasbarro Mark A | Sandal sole |
US4829682A (en) * | 1987-04-27 | 1989-05-16 | Gasbarro Mark A | Sandal sole |
US5706589A (en) * | 1996-06-13 | 1998-01-13 | Marc; Michel | Energy managing shoe sole construction |
US6505420B1 (en) * | 1996-02-09 | 2003-01-14 | Reebok International Ltd. | Cushioning member for an article of footwear |
US20030217484A1 (en) * | 2002-05-24 | 2003-11-27 | Brian Christensen | Shoe sole having a resilient insert |
US20050132606A1 (en) * | 2001-06-21 | 2005-06-23 | Nike, Inc. | Footwear with bladder filter |
US20060000112A1 (en) * | 2004-06-30 | 2006-01-05 | Chien Ching-Ho | Double head sleeper structure |
US7823299B1 (en) * | 2007-02-07 | 2010-11-02 | Brigham John P | Interchangeable flip-flop/sandal |
US20120042537A1 (en) * | 2010-08-23 | 2012-02-23 | Vito Dimatteo | Sandal with pneumatic support |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1750330A1 (en) * | 1967-04-24 | 1971-01-21 | Svaerd Alf Georg | Valve with rolling valve bodies |
US3991491A (en) * | 1975-10-23 | 1976-11-16 | Ming Der Huang | Master slipper |
JPS54157750U (en) * | 1978-04-21 | 1979-11-02 | ||
US4346731A (en) * | 1981-05-26 | 1982-08-31 | Chevron Research Company | Buoyant element check valve for a thermosiphon energy system |
US4489744A (en) * | 1982-09-27 | 1984-12-25 | The United States Of America As Represented By The United States Department Of Energy | Liquid blocking check valve |
WO1990009115A1 (en) * | 1989-02-08 | 1990-08-23 | Reebok International Ltd. | An article of footwear |
IT1282155B1 (en) * | 1995-06-20 | 1998-03-16 | Sadler Sas Di Marc Sadler & C | FOOTWEAR WITH SOLE PROVIDED WITH A SHOCK ABSORBER |
JP3117194B2 (en) * | 1996-03-12 | 2000-12-11 | アキレス株式会社 | Air pump for ventilation in shoes |
JPH10196817A (en) | 1997-01-09 | 1998-07-31 | Tec Corp | Selector valve |
JP3298491B2 (en) * | 1998-02-19 | 2002-07-02 | 三浦電子株式会社 | Multi-branch valve |
KR100272946B1 (en) * | 1998-05-06 | 2001-04-02 | 손연호 | Structure of two-way valve |
CN2383370Y (en) * | 1999-04-26 | 2000-06-21 | 刘书森 | Slipper |
KR200201418Y1 (en) * | 2000-04-17 | 2000-11-01 | 권해붕 | Automatic inclination adjusting sole for golf shoes |
CN2517276Y (en) * | 2002-01-22 | 2002-10-23 | 赵亚民 | Inflating two-way slippers |
JP4348235B2 (en) * | 2004-05-31 | 2009-10-21 | 本田技研工業株式会社 | Fuel cut valve |
WO2005120269A1 (en) * | 2004-06-07 | 2005-12-22 | Jong-Hoe Park | Shoes capable of buffering shock by air circulation |
KR20050122149A (en) * | 2004-06-23 | 2005-12-28 | 이지민 | Slope adjust shoes |
KR200431221Y1 (en) * | 2006-08-28 | 2006-11-23 | 김영대 | Covers for preventing weeds |
KR200431329Y1 (en) * | 2006-08-29 | 2006-11-23 | 박창연 | Bilateral slippers |
CN201462044U (en) * | 2009-06-16 | 2010-05-12 | 义马环保电力有限公司 | Reversing check valve |
JP3154557U (en) * | 2009-07-31 | 2009-10-22 | 株式会社ジー・システム | Footwear bottom structure for toilet |
US20110277344A1 (en) * | 2010-04-12 | 2011-11-17 | Berg David G | Bidirectional slipper |
CN202674409U (en) * | 2012-02-24 | 2013-01-16 | 乔丹体育股份有限公司 | Bi-directional free transform one-way valve |
JP2013204698A (en) | 2012-03-28 | 2013-10-07 | Osaka Gas Co Ltd | Water shut-off valve for piping |
KR101586788B1 (en) * | 2015-04-29 | 2016-01-19 | 김용수 | Slipper having valve assembly controlling fluid flow derection based on rotation angle |
-
2015
- 2015-04-29 KR KR1020150060582A patent/KR101586788B1/en active IP Right Grant
-
2016
- 2016-04-12 EP EP16164855.5A patent/EP3088777A1/en not_active Withdrawn
- 2016-04-14 EP EP16165197.1A patent/EP3130244B1/en not_active Not-in-force
- 2016-04-15 US US15/099,728 patent/US9795183B2/en not_active Expired - Fee Related
- 2016-04-15 US US15/099,792 patent/US10165820B2/en not_active Expired - Fee Related
- 2016-04-19 JP JP2016083352A patent/JP6364041B2/en not_active Expired - Fee Related
- 2016-04-19 JP JP2016083511A patent/JP6165921B2/en not_active Expired - Fee Related
- 2016-04-28 CN CN201610278053.9A patent/CN106090348A/en active Pending
- 2016-04-28 CN CN201610278052.4A patent/CN106072983B/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106222A (en) * | 1977-08-01 | 1978-08-15 | Houck Randall G | Inflatable podiatric device |
US4446634A (en) * | 1982-09-28 | 1984-05-08 | Johnson Paul H | Footwear having improved shock absorption |
US4753022A (en) * | 1987-04-27 | 1988-06-28 | Gasbarro Mark A | Sandal sole |
US4829682A (en) * | 1987-04-27 | 1989-05-16 | Gasbarro Mark A | Sandal sole |
US6505420B1 (en) * | 1996-02-09 | 2003-01-14 | Reebok International Ltd. | Cushioning member for an article of footwear |
US5706589A (en) * | 1996-06-13 | 1998-01-13 | Marc; Michel | Energy managing shoe sole construction |
US20050132606A1 (en) * | 2001-06-21 | 2005-06-23 | Nike, Inc. | Footwear with bladder filter |
US20030217484A1 (en) * | 2002-05-24 | 2003-11-27 | Brian Christensen | Shoe sole having a resilient insert |
US20060000112A1 (en) * | 2004-06-30 | 2006-01-05 | Chien Ching-Ho | Double head sleeper structure |
US7823299B1 (en) * | 2007-02-07 | 2010-11-02 | Brigham John P | Interchangeable flip-flop/sandal |
US20120042537A1 (en) * | 2010-08-23 | 2012-02-23 | Vito Dimatteo | Sandal with pneumatic support |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020500656A (en) * | 2016-12-07 | 2020-01-16 | キム, ヨン−ソKIM, Yong−Soo | Valve assembly that can control the flow direction of fluid according to the inclination direction |
Also Published As
Publication number | Publication date |
---|---|
KR101586788B1 (en) | 2016-01-19 |
JP6165921B2 (en) | 2017-07-19 |
JP6364041B2 (en) | 2018-07-25 |
EP3130244B1 (en) | 2018-06-13 |
CN106072983A (en) | 2016-11-09 |
JP2016211733A (en) | 2016-12-15 |
EP3130244A1 (en) | 2017-02-15 |
US20160319948A1 (en) | 2016-11-03 |
JP2016209562A (en) | 2016-12-15 |
CN106090348A (en) | 2016-11-09 |
CN106072983B (en) | 2018-02-13 |
US9795183B2 (en) | 2017-10-24 |
US10165820B2 (en) | 2019-01-01 |
EP3088777A1 (en) | 2016-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9795183B2 (en) | Slipper or sandal capable of being worn bi-directionally | |
EP3785561B1 (en) | Article of footwear with a heel extender | |
US11457695B2 (en) | Article of footwear with an adaptive fluid system | |
CN102083335B (en) | Outsole having grooves forming discrete lugs | |
US7059068B2 (en) | Height adjustable flexible shoe | |
CN108778024B (en) | Article of footwear having a sole system with load-bearing members and sensory node elements | |
RU2009119708A (en) | SOLE FOR FOOTWEAR EFFECT SHOES | |
CN106136431A (en) | There are vamp and the sole of adaptive faculty | |
US10687583B2 (en) | Shock absorbing member for sole of shoe and shoe including shock absorbing member | |
JP2020044197A (en) | Sole structure and shoe having the same | |
US10709198B2 (en) | Sole structure and shoe including same | |
WO2020243521A1 (en) | Articles of footwear with adaptive-height bladder elements | |
KR101645318B1 (en) | Valve assembly controlling fluid flow derection based on rotation angle | |
JP2019154853A (en) | Sole structure and shoes using the same | |
CN201422463Y (en) | Folding type shoes with dual purpose of high and flat heel | |
CN101467804B (en) | Ventilated leather shoe with embedded air bag | |
CN110475491A (en) | On-slip shoes | |
CN209694193U (en) | A kind of shoe parts, shoes and shoe system | |
KR101055699B1 (en) | Dancesport shoes | |
JP2010094345A (en) | Golf shoe | |
US372387A (en) | Alfeed eix | |
JP5305826B2 (en) | Golf shoes | |
CN115942889A (en) | Foot support system, sole structure, and article of footwear including interconnected bladders for inducing tilt | |
KR20100110004A (en) | Footwear capable of absorbing cross shock | |
TW201434406A (en) | A method of adjusting the weight of footwear sole |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: MICROENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: MICROENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20211024 |